The Thermometer,self-Indicating, cataloged under National Stock Number 6685-01-644-0569, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is National Oilwell Varco Inc Dba National Oilwell. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-644-0569 |
| Primary Part Number | 6550-40-0016 |
| Item Name | Thermometer,self-Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | National Oilwell Varco Inc Dba National Oilwell |
| Status | ACTIVE |
| Scale Type | DIAL |
| Scale Measurement Range | +20.0 TO 240.0 DEG FAHRENHEIT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6550-40-0016 PRIMARY | National Oilwell Varco Inc Dba National Oilwell (USA) |
NSN 6685-01-644-0569 is a Thermometer,self-Indicating, manufactured by National Oilwell Varco Inc Dba National Oilwell, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-644-0569 has 1 manufacturer part number on file: 6550-40-0016 (National Oilwell Varco Inc Dba National Oilwell).
Key specifications for 6550-40-0016: Scale Type: DIAL; Scale Measurement Range: +20.0 TO 240.0 DEG FAHRENHEIT; End Item Identification: GENERATOR,AC,SHIPS SERVICE P/N T437STT-611. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.